HOLO-KROME 730001440 براغي مقبس مقاس 5/16-24 × 3 بوصة | محرك مقبس سداسي | فولاذ سبائكي مؤكسد أسود حراري (100 / عبوة)

Installing these in a jig today and the 5/16-24 threads cut clean right from the start. The 3" length was exactly what I needed for a thick plate, and the black oxide finish resists scuffs better than bare steel.

The black oxide finish on these screws looks professional and held up well during assembly. They threaded smoothly into my jig without any binding, and the 3-inch length was exactly what I needed for my setup.

I needed some longer socket cap screws for a jig I was building, and these 3" alloy steel ones threaded perfectly into my fixture plate. The hex socket drive made installation much easier than dealing with a stripped phillips head.